Please note on the hardware requirement on USB Thumb Drive when you wish to test out Windows 8 “Windows to Go Workspace” feature. Not all USB 3.0 thumb drive can be used! I bought a scandisk USB3.0 thumb drive happily and wanted to test and I see the following message..

What brand and model of thumb drive can be used?

Please refer to the link below for the specific brand and model of thumb drive before buying to use for testing.